[Gtk-sharp-list] Get Parent Iter from Treeview

[Coral Lights]

Hi:

Quickly using the example code from the Mono tutorials:

Gtk.TreeIter iter = musicListStore.AppendValues ("Dance");
musicListStore.AppendValues (iter, "Fannypack", "Nu Nu (Yeah Yeah)
(double j and haze radio edit)");

iter = musicListStore.AppendValues ("Hip-hop");
musicListStore.AppendValues (iter, "Nelly", "Country Grammer");


In my own project I understand how to grab the currently selected tree row,
but how can I also get the value for the  parent?

Basically, like in this example if the user selected the row with the value
"FannyPack", I would also like to be able to get the parent "Dance" value.
Or, if "Nelly" is the row selected, I only want also its parent's value "Hip
Hop".

I've tried multiple methods, but to failure to just grab the single parent
node value.
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